/ Dictionary / Index I inadvertency: Meaning and Definition of Find definitions for: in•ad•vert•en•cy Pronunciation: (in"ud-vûr'tn-sē), [key] — pl. -cies. inadvertence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inadvertency (Thesaurus) inadvertence inadvertent Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language